Comparative study on influence of energy transmission characteristics of transmission coil consist of resonant tank circuit topologies suitable for wireless power transmission system

2019 ◽  
Vol 45 (0) ◽  
pp. 209-209
Author(s):  
Yoshiki Motokage ◽  
Ryohei Yabuki ◽  
Hiroto Nishitani ◽  
Kousuke Katou ◽  
Hideto Yonemori ◽  
...  
Keyword(s):  
Comparative Study ◽  
Power Transmission ◽  
Transmission System ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Transmission Characteristics ◽  
Energy Transmission ◽  
Tank Circuit ◽  
Power Transmission System

scholarly journals Design and Optimization of Inductive Wireless Power Transmission System

2018 ◽  
Vol 2 (1) ◽  
pp. 15
Author(s):  
Xiaoke Ding
Keyword(s):  
Power Transmission ◽  
Simulation Analysis ◽  
Electrical Equipment ◽  
Transmission System ◽  
Air Gap ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Simulation Design ◽  
Energy Transmission ◽  
Power Transmission System

The inductive wireless power transmission system is actually applied to the principle of magnetic feld coupling, combined with the flexibility of the electrical equipment to achieve flexible and safe power supply. In the realization process of wireless power transmission, the key point lies in the transmission effciency and power transmission capability. However, wireless transmission still has some disadvantages in these two aspects. In this case, there is an air gap between the transmitting winding and the receiving winding. If it is too large and the coupling coeffcient is too low, in view of this situation, it is necessary to carry out research from aspects such as raising the coupling coeffcient and controlling the air gap. The article frstly describes the development ofwireless power transmission technology and transmission principles, etc. Secondly, it analyzes the output control of wireless power transmission systems. Third, it conducts simulation analysis using loosely coupling transformers and proposes an optimized solution.The simulation design and inspection process were proposed. The main purpose of this paper is to analyze the current wireless energy transmission system and clarify the direction in which it should be strengthened. The signifcance of this study is to provide a feasible direction for the further optimization of the wireless energy transmission system.

Wireless Power and Information Synchronous Transmission Technology Based on Magnetic Resonance

2013 ◽  
Vol 300-301 ◽  
pp. 615-620
Author(s):  
Wei Xin Li ◽  
He Zhang ◽  
Chang Sheng Li
Keyword(s):  
Power Transmission ◽  
Transmission System ◽  
Maximum Efficiency ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Transmission Characteristics ◽  
Resonant Coupling ◽  
Power Transmission System ◽  
Simulation And Experiment ◽  
Novel Method

In order to solve the problem that electromagnetic induction widely used now is just suited to short distance transmission, and study on the transmission characteristics of wireless power transmission system based on magnetic resonant coupling, a novel method that the two separate-coupling coils achieve wireless power and information synchronous transmission is proposed. The basic theory of wireless power transmission and information system is introduced. The condition that resonant frequency splitting phenomenon is produced of a contact-less power transmission system has been deduced, and it depend on the length of distance between the two coils. The principle prototype of transmission system is designed, and transmission characteristics of the system are analyzed by simulation and experiment. Based on circuit formulation, maximum efficiency is found to exist. The results show that the method of wireless power and information synchronous transmission system is in agreement with theoretical analysis.

Analysis of Wireless Energy Transfer System Using Magnetic Resonant Coupling

2012 ◽  
Vol 591-593 ◽  
pp. 1164-1167
Author(s):  
Wei Xin Li ◽  
He Zhang
Keyword(s):  
Resonant Frequency ◽  
Power Transmission ◽  
Transmission System ◽  
Simulation Software ◽  
Maximum Efficiency ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Transmission Characteristics ◽  
Resonant Coupling ◽  
Power Transmission System

In order to research the relationship between coupling distance and transmission efficiency, study on the transmission characteristics of magnetic resonant coupling for wireless power transmission system, simulation model of wireless power transmission system via magnetic resonance coupling were established based on the theory of two ports network analysis method. The frequency expression of maximum efficiency and the resonant frequency splitting phenomenon condition of a contact-less power transmission system were derived. In a weak coupling at resonance, magnetic resonant coupling can transfer energy with high efficiency. The resonant frequency changes from two to one depending on the critical condition. Until a certain distance, maximum efficiencies are not got. The transmission characteristics of this system were researched by simulation software and experiments. The results show that the transmission characteristics are consistent with theoretical analysis and simulation.

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